CPT® Code 80361

The CPT® Code 80361 refers to a laboratory test specifically designed to measure the presence of opiates in various biological samples, including meconium stool, urine, serum, or plasma. Opiates are defined as naturally occurring opioid alkaloids that are derived from the resin of the opium poppy plant, scientifically known as Papaver somniferum. This category of substances includes well-known compounds such as morphine, codeine, and thebaine. In certain instances, naturally occurring derivatives like hydromorphone and hydrocodone may also be detected, although this is relatively rare. Additionally, trace amounts of other substances such as dihydrocodeine, oxymorphone, oxycodone, and metopon may occasionally be identified. It is important to note that the semi-synthetic versions of these compounds are typically classified as opioids or opiate analogs. Opiates are primarily utilized in clinical settings as narcotic analgesics to manage moderate to severe pain. They function as central nervous system depressants and have the capacity to influence brain regions associated with pleasure, thereby inducing a euphoric state alongside pain relief. Due to their psychoactive properties, these substances are sometimes misused for recreational purposes. The collection of samples for this test involves obtaining a blood sample through a procedure known as venipuncture, which is reported separately. Urine samples can be collected via random voiding or catheterization, while meconium stool is gathered from a diaper. To ensure accuracy, all samples are confirmed through a sophisticated analytical technique known as quantitative liquid chromatography-tandem mass spectrometry.